Thin film battery substrate cutting and fabrication process

Metal working – Method of mechanical manufacture – Electrical device making

Reexamination Certificate

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C429S162000

Reexamination Certificate

active

07862627

ABSTRACT:
A method of fabricating a battery comprises selecting a battery substrate having cleavage planes, and cutting the battery substrate with pulsed laser bursts from a pulsed laser beam to control or limit fracture along the cleavage planes. The pulsed laser beam was also found to work well on thin substrates which are sized less than 100 microns. Before or after the cutting step, a plurality of battery component films can be deposited on the battery substrate. The battery component films include at least a pair of electrodes about an electrolyte which cooperate to form a battery.

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